There were two Chinese companies at this years CEBIT that were showing a limited range of Zigbee devices. Problem was that both admitted that each others devices would not interoperate...at all! Yes they use the same 2.4Ghz radio band but beyond that there was no interoperability. I have nothing against Zigbee at all but I cant see how it will catch-up with other competing technologies like ZWave, Insteon, ENocean etc.

It seems that ZigBee devices are interoperate now. The big advantage of ZigBee is close integration with TCP protocol and open protocol (as I know). Sure if somebody has a knowledge and time it'd be good to have another option for automation.

It seems that ZigBee devices are interoperate now. The big advantage of ZigBee is close integration with TCP protocol and open protocol (as I know). Sure if somebody has a knowledge and time it'd be good to have another option for automation.

Well I think your link to Vesternet proves the point really...there are a tiny number of devices available (Notice none of Control4's devices are listed...they dont interoperate)...no light switches to give one example. Zigbee is still totally tied into single vendor deals and i cant see that changing at all. Witness my experience at CEBIT and also at the earlier e-Home show in Berlin...no one had interoperability at all.

KNX, ZZZWave, ENocean all have equivalents to the Z-202 - they work as well and do the same thing. Nothing wrong with the Z-202 but also nothing unique about the Z-202 at all...

Zigbee seems like a technology that us a little too late to the party to be frank.

As a follow up, there has been some talk about communicating with power meters and doing energy related monitoring as well as sending. For some of this too happen, we would need a Zigbee SE profile added as a driver.